Cute game! I really like the art, and the cover picture really caught my attention. One minor thing that I encountered was that I sometimes tried to pull the ghosts into the grave's soil instead of the tombstone - it took me a moment to notice that I have to pull them into the stone, not the soil (I only read the description afterwards, oops!).
Also, I really like that the fact that the graves are randomized so that every playthrough is different.